Optional parameter, No data lines are needed for type = user – ABAQUS Volume II: I–Z User Manual

Page 372

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*RIGID SURFACE

Set TYPE=CYLINDER to define a three-dimensional rigid surface by providing connected

line segments and then sweeping them along a specified generator vector.

Set TYPE=REVOLUTION to define a three-dimensional rigid surface by providing connected

line segments, which are given in an

plane and are rotated about an axis.

Set TYPE=USER to define a rigid surface via user subroutine RSURFU.

Optional parameter:

FILLET RADIUS

This

parameter

can

be

used

with

TYPE=SEGMENTS,

TYPE=CYLINDER,

or

TYPE=REVOLUTION to define a radius of curvature to smooth discontinuities between adjoining
straight-line segments, adjoining circular-arc segments, and adjoining straight-line and circular-arc
segments. It has no effect on rigid surfaces defined with TYPE=USER.

No data lines are needed for TYPE=USER.

Data lines to define surfaces created with TYPE=SEGMENTS:

First line:

1. The “word” START.

2. Global X-coordinate or r-coordinate of the starting point of the line segments.

3. Global Y-coordinate or z-coordinate of the starting point of the line segments.

Second and subsequent data lines define the various line, circular, and parabolic segments (see
below for their format) that form the profile of the rigid surface.

Data lines to define surfaces created with TYPE=CYLINDER:

First line:

1. Global X-coordinate of point a, the origin of the local

system (see Figure 17.19–1).

2. Global Y-coordinate of point a, the origin of the local

system.

3. Global Z-coordinate of point a, the origin of the local

system.

4. Global X-coordinate of point b on the local x-axis.

5. Global Y-coordinate of point b on the local x-axis.

6. Global Z-coordinate of point b on the local x-axis.

Second line:

1. Global X-coordinate of point c on the local cylinder generator vector.

2. Global Y-coordinate of point c on the local cylinder generator vector.

3. Global Z-coordinate of point c on the local cylinder generator vector.

17.19–2

ABAQUS Version 6.1

Module: ID:

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